(S)-2-((S)-2-((S)-2-((tert-Butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinoline-7-carboxylic acid → (S)-2-((2S,4R)-1-((S)-2-((S)-2-((tert-Butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-4-((S)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrrolidine-2-carboxamido)-3-phenylpropanoic acid

Participants

Reaction Steps

Following a procedure analogous to that for the synthesis of Compound K of Example 1, (S)-methyl 2-((2S,4R)-1-((S)-2-((S)-2-((tert-butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-4-((S)-2-((S)-2-((S)-2-((tert-butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrrolidine-2-carboxamido)-3-phenylpropanoate (310 mg, 0.26 mmol) was converted to the title compound (291 mg, 95%). MS (ESI+) m/z 1016.7 (M+H)+.

Provenance & Evidence